CRM获取实体 - 错误：无法转换类型'Microsoft.Xrm.Sdk.Entity“对象键入'CRMEntities.List” [英] CRM Retrieve entity - Error: Unable to cast object of type 'Microsoft.Xrm.Sdk.Entity' to type 'CRMEntities.List'

问题描述

我产生的实体从CRM这样的：

I generated entities from CRM like this:

CrmSvcUtil.exe /url:http://<servername>/<organizationname>/XRMServices/2011/Organization.svc
    /out:<outputfilename>.cs /username:<username> /password:<password> /domain:<domainname>
    /namespace:CRMEntities /serviceContextName:XrmServiceContext

对于 serviceContextName 我将 XrmServiceContext 。
我想用下面的代码检索CRM的一些实体：

For serviceContextName I set XrmServiceContext. I want to retrieve some entity from CRM using next code:

var context = new XrmServiceContext(myorgserv);
var marketingList = context.ListSet.Where(item => item.Id == new Guid("SOME GUID"));

和我得到的错误：

Message "Unable to cast object of type 'Microsoft.Xrm.Sdk.Entity' to type 'CRMEntities.List'."

在添加观看我看到，在上下文中，每个实体的集合有相同的消息。
有什么我错过了吗？

After 'add to watch' I saw that every set of entities in context have the same message. What have I missed?

推荐答案

问题解决了。初始化后的 OrganizationServiceProxy ，我得叫
EnableProxyTypes 方式。

Problem solved. After initializing OrganizationServiceProxy, I have to call EnableProxyTypes method.

OrganizationServiceProxy orgserv;
ClientCredentials clientCreds = new ClientCredentials();

    clientCreds.Windows.ClientCredential.UserName = username;
    clientCreds.Windows.ClientCredential.Password = password;
    clientCreds.Windows.ClientCredential.Domain = domain;
    IServiceConfiguration<IOrganizationService> orgConfigInfo = ServiceConfigurationFactory.CreateConfiguration<IOrganizationService>(orgServiceUri);

    orgserv = new OrganizationServiceProxy(orgConfigInfo, clientCreds);
    orgserv.EnableProxyTypes();

关键是： orgserv.EnableProxyTypes（）;

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